Native leaders and domestic school survivors in Canada have called on authorities to conduct an extensive investigation of every former property school in the country after the remains of the children were found.”The first top priority is the health, healing and health of the survivors and their families, as well as the community of Cowessess First Nation,” said Larissa Burnouf with FSIN Communications.Photos and videos of the website are expected to be supplied Thursday during the news conference.The Cowessess Nation is situated near the neighborhood of Broadview, about 95 miles from the provincial capital of Regina.